Financial Data and Key Metrics Changes - The company reported total product and royalty revenue of $190 million for Q1 2025, with a narrowed full-year revenue guidance of $650 million to $800 million [5][6][20] - The cash position at the end of Q1 was over $2 billion, providing resources for commercial and R&D efforts [5][10][20] Business Line Data and Key Metrics Changes - The DMD franchise generated $134 million in revenue, with Translarna contributing $86 million and Emflaza $48 million [12][20] - The company is preparing for the launch of SUFIANCE, with a positive CHMP opinion and expected broad label for PKU patients [6][16] Market Data and Key Metrics Changes - The company anticipates revenue from SUFIANCE in 2025, leveraging early access programs in Germany and other markets [6][37] - Approximately 58,000 addressable patients with PKU are expected to be targeted in the global launch [16] Company Strategy and Development Direction - The company aims to achieve cash flow breakeven through ramping up PKU commercial sales and pending FDA approvals [10][11] - Strategic focus on business development opportunities while maintaining a strong financial position [38] Management's Comments on Operating Environment and Future Outlook - Management expressed confidence in the ongoing FDA review processes, indicating no expected delays [28][29] - The company is well-positioned to navigate global macro uncertainties, with minimal expected impact from tariffs and regulatory changes [97][99] Other Important Information - The company is actively engaging with healthcare providers and patients to prepare for the launch of SUFIANCE, emphasizing the importance of diet liberalization for PKU patients [17][31] - The FDA is conducting inspections for the Pitiquinone NDA, with no AdCom meeting planned, indicating a smooth review process [9][78] Q&A Session Summary Question: On SUFIANCE, what is the dynamic of patient inquiries? - Management noted that inquiries are coming from both therapy-naive patients and those who have tried other therapies, driven by social media engagement [24][25][29] Question: Expectations for SUFIANCE sales in Europe? - Management confirmed expectations for revenue in 2025 from early access programs in Germany and other countries [35][37] Question: Feedback from the nutritionist community regarding SUFIANCE? - Management highlighted the involvement of nutritionists in the launch plan, emphasizing their role in patient management [41][42] Question: Insights on Friedreich's ataxia and potential patient access? - Management indicated a significant unmet need for patients under 16 and expressed confidence in rapid uptake post-approval [80][82] Question: Impact of global macro factors on financial guidance? - Management stated minimal expected impact from tariffs and regulatory changes, maintaining confidence in their pricing strategy [97][99]

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2025 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-35969 PTC Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 04-3416587 (Stat ...

Financial Data and Key Metrics Changes - The company reported total product and royalty revenue of $190 million for Q1 2025, with a narrowed full-year revenue guidance of $650 million to $800 million [4][5][20] - Cash, cash equivalents, and marketable securities totaled over $2 billion as of March 31, 2025, providing resources for commercial and R&D efforts [10][20] Business Line Data and Key Metrics Changes - The DMD franchise generated $134 million in revenue, with Translarna contributing $86 million and Emflaza contributing $48 million [12][20] - The company expects to see revenue from the SUFIANCE launch in 2025, with preparations underway for its European launch following a positive CHMP opinion [5][15] Market Data and Key Metrics Changes - The company is prioritizing launches in Germany, the US, and Japan for SUFIANCE, with an addressable patient population of approximately 58,000 for PKU [16][17] - The company continues to receive orders for Translarna in Latin America, the Commonwealth of Independent States, and the Middle East and North Africa regions [13] Company Strategy and Development Direction - The company aims to achieve cash flow breakeven through ramping up PKU commercial sales and pending FDA approval applications [10][11] - The company is actively exploring business development opportunities while maintaining a strong financial position [39][40] Management's Comments on Operating Environment and Future Outlook - Management expressed confidence in the ongoing FDA review processes for SUFIANCE and other applications, noting no impact from recent FDA changes [7][28] - The company highlighted strong patient interest and engagement through social media, indicating a positive environment for upcoming product launches [29][30] Other Important Information - The company reported positive top-line results for the PIVOT HT Phase 2 study for Huntington's disease, meeting primary endpoints [9] - The company is preparing for potential accelerated approval for PTC518 based on favorable data [10] Q&A Session Summary Question: On SUFIANCE, what is the dynamic of patient inquiries? - Management noted that inquiries are coming from both therapy-naive patients and those who have tried other therapies, driven by social media engagement [24][30] Question: Expectations for SUFIANCE revenue in Europe? - Management confirmed expectations for revenue in 2025 from early access programs in Germany and other European countries [36][38] Question: Feedback from the nutritionist community regarding SUFIANCE? - Management indicated that nutritionists are closely involved in the launch plan, emphasizing the importance of diet management for PKU patients [42][43] Question: Impact of global macro factors on financial guidance? - Management stated minimal expected impact from tariffs and other macro factors, maintaining confidence in their pricing strategy [95][100] Question: Patient population breakdown for Vetiquinone? - Management estimated that about one-third of the 6,000 patients with Friedreich's ataxia in the US would be pediatric patients [104]

Revenue and Financial Performance - Total net product and royalty revenue for Q1 2025 was $190 million, compared to $208.8 million in Q1 2024[8]. - Revenue from the DMD franchise in Q1 2025 was $134 million, with Translarna™ generating $86 million and Emflaza® generating $48 million[4]. - Net income for Q1 2025 was $866.6 million, compared to a net loss of $91.6 million in Q1 2024[8]. - PTC anticipates full-year 2025 revenue to be between $650 million and $800 million, including in-line products and potential new product launches[8]. - Cash, cash equivalents, and marketable securities totaled $2.03 billion as of March 31, 2025, up from $1.14 billion at the end of 2024[8]. - Full-year 2025 GAAP R&D and SG&A expenses are projected to be between $805 million and $835 million[8]. Research and Development - GAAP R&D expenses for Q1 2025 were $109 million, down from $116 million in Q1 2024[8]. - PTC518 Phase 2 study met primary endpoint of dose-dependent blood HTT lowering at Week 12, with favorable safety and tolerability[4]. - The NDA for pediatric and adult patients with Friedreich's ataxia has been accepted and granted Priority Review by the FDA, with a target action date of August 19, 2025[4]. Regulatory and Market Approvals - Positive CHMP opinion for Sephience™ received on April 25, 2025, with an expected EC adoption in approximately two months[4]. - PTC's marketing authorization for Translarna in Brazil, Russia, and other regions is under scrutiny due to potential risks in pricing and reimbursement negotiations[21]. - The company is relying on results from Study 041, an 18-month clinical trial, to support marketing approval for Translarna in the United States[21]. Collaborations and Commercialization - PTC has a collaboration agreement with Novartis, which includes development, regulatory, and sales milestone payments, as well as profit sharing and royalties[21]. - Expectations for Upstaza/Kebilidi include commercialization and achieving sales milestones, with potential contingent payments[21]. - The commercialization of Evrysdi under PTC's SMA collaboration is anticipated, along with Tegsedi and Waylivra[21]. Risks and Strategic Considerations - PTC faces significant risks in the development and regulatory approval of its products, including Translarna, Emflaza, and vatiquinone[23]. - The company emphasizes the importance of considering various risk factors that could impact its business and financial performance[21]. - PTC's ability to secure adequate financing for operating expenses and capital expenditures is critical for its future operations[21]. - The eligible patient base and commercial potential of PTC's products are key considerations for the company's growth strategy[21]. - PTC does not guarantee that any of its products will achieve commercial success or maintain regulatory approval[23].

Core Insights - PTC Therapeutics reported strong revenue performance of $190 million for the first quarter of 2025, with a significant cash position exceeding $2 billion as of March 31, 2025, supporting ongoing commercial and R&D activities [1][8]. Financial Performance - Total net product and royalty revenue for Q1 2025 was $190 million, a decrease from $208.8 million in Q1 2024 [5]. - Revenue from the DMD franchise was $134 million, with Translarna™ contributing $86 million and Emflaza® contributing $48 million [5]. - Collaboration and license revenue included $986.2 million from the PTC518 agreement with Novartis, which closed in January 2025 [5][7]. - Net income for Q1 2025 was $866.6 million, compared to a net loss of $91.6 million in Q1 2024 [8]. Regulatory and Clinical Updates - Positive CHMP opinion for Sephience™ (sepiapterin) received on April 25, 2025, with an expected European Commission adoption in approximately two months [5]. - NDA for Sephience is under review by the FDA, with a target action date of July 29, 2025 [5]. - NDA for vatiquinone accepted and granted Priority Review by the FDA, with a target action date of August 19, 2025 [5]. - Phase 2 PIVOT-HD study for PTC518 met primary endpoint of dose-dependent blood HTT lowering at Week 12, with favorable safety and tolerability [5]. Guidance and Future Outlook - PTC anticipates full-year 2025 revenue between $650 million and $800 million, including in-line products and potential new launches [8]. - Full-year 2025 GAAP R&D and SG&A expenses are projected to be between $805 million and $835 million [8]. - Non-GAAP R&D and SG&A expenses are expected to be between $730 million and $760 million, excluding estimated non-cash, stock-based compensation of $75 million [8].

Core Insights - PTC Therapeutics announced results from the Phase 2 PIVOT-HD study of PTC518 (votoplam) for Huntington's disease, achieving its primary endpoint of reducing blood HTT protein levels with significant statistical significance [1][2] Study Results - The study demonstrated a reduction in blood HTT protein levels of 23% at the 5mg dose and 39% at the 10mg dose for Stage 2 patients, while Stage 3 patients showed a 36% reduction at the 10mg dose [4] - The treatment exhibited favorable safety and tolerability across all dose levels and disease stages, with no serious adverse events reported [5] Clinical Implications - There were observed dose-dependent trends in clinical scales for Stage 2 patients, including improvements in the Composite Unified Huntington's Disease Rating Scale (cUHDRS) and Total Motor Score (TMS) [4] - For Stage 3 patients, the 5mg dose showed favorable trends compared to placebo, indicating potential differences in treatment effects between stages [5] Long-term Data - 24-month treatment data indicated dose-dependent trends on cUHDRS, Total Function Capacity (TFC), and Symbol Digit Modalities Test (SDMT) subscales, with a notable lowering of plasma NfL levels at both 5mg and 10mg doses [6] Market Reaction - Following the announcement, PTC Therapeutics' stock fell by 18.60% to $40.65, reflecting investor concerns regarding the differing treatment effects observed in Stage 3 patients [5][7]

This presentation contains forward-looking statements within the meaning of The Private Securities Litigation Reform Act of 1995. All statements contained in this presentation, other than statements of historic fact, are forward-looking statements, including statements with respect to the future expectations, plans and prospects for PTC, PTC's strategy, including with respect to the expected timing of clinical trials and studies, availability of data, regulatory submissions and responses and other matters, ...

Summary of PTC Therapeutics (PTCT) Update / Briefing May 05, 2025 Company and Industry - **Company**: PTC Therapeutics - **Industry**: Biotechnology, specifically focused on Huntington's disease treatment Key Points and Arguments 1. **PIVOT HD Study Overview**: The PIVOT HD study assessed PTC518 in Huntington's disease patients through a twelve-month placebo-controlled trial, focusing on pharmacodynamic effects and safety at two dose levels (5 mg and 10 mg) [2][3][4] 2. **Primary and Secondary Endpoints**: The primary endpoints included total blood huntingtin protein lowering at twelve weeks and safety events, while secondary endpoints included twelve-month blood huntingtin protein levels and changes in clinical scales [3][4] 3. **Results at Twelve Months**: The study met its primary endpoint, showing statistically significant dose-dependent reductions in blood HTT protein levels and a favorable safety profile [4][12] 4. **Long-Term Treatment Effects**: For subjects completing twenty-four months of treatment, there were continued dose-dependent favorable effects on clinical scales compared to a matched natural history cohort [5][14][16] 5. **Safety Profile**: PTC518 demonstrated a favorable safety and tolerability profile, with no treatment-related serious adverse events reported [11][13] 6. **Patient Demographics**: A total of 159 subjects were enrolled, with notable differences in age and disease severity between Stage two and Stage three patients [6][10] 7. **Clinical Effectiveness**: Early trends of clinical effect were observed, particularly in Stage two patients, suggesting that this group may be more amenable to treatment [11][39] 8. **Neurofilament Light Chain (NfL) Levels**: At twenty-four months, there were dose-dependent decreases in plasma NfL levels, indicating potential neuroprotective effects of PTC518 [15][16] 9. **Regulatory Considerations**: The company plans to discuss next development and regulatory steps with the FDA, including the potential for accelerated approval based on the data [18][23] 10. **Market Size**: Approximately 85% of the Huntington's disease population is in Stage two, while 10-15% are in Stage three, indicating a larger market potential for earlier-stage patients [39] Other Important but Possibly Overlooked Content 1. **Variability in Treatment Response**: There was significant variability in treatment response, particularly in Stage three patients, which may complicate the interpretation of results [31][38] 2. **Future Studies**: The company is considering the optimal patient population for future studies, emphasizing the importance of targeting earlier-stage patients for better treatment outcomes [39][72] 3. **Potential for Higher Doses**: Discussions are ongoing regarding the possibility of exploring higher doses in future trials, although current data supports the efficacy of the 5 mg and 10 mg doses [33][99] 4. **Cognitive Function**: The SDMT cognitive subscale showed promising trends, suggesting that cognitive benefits may take longer to manifest [60][76] 5. **Regulatory Strategy**: The company is evaluating the potential for accelerated approval based on surrogate biomarkers and clinical endpoints, with ongoing discussions with regulatory bodies [69][90]

Core Viewpoint - PTC Therapeutics has received a positive opinion from the CHMP of the EMA for the marketing authorization of Sephience™ (sepiapterin) to treat phenylketonuria (PKU), addressing a significant unmet medical need in Europe [1][2]. Company Overview - PTC Therapeutics is a global biopharmaceutical company focused on developing and commercializing medicines for rare disorders, with a robust pipeline of transformative therapies [7]. Product Information - Sephience is an oral formulation of synthetic sepiapterin that acts through a dual mechanism to enhance the activity of the phenylalanine hydroxylase (PAH) enzyme, effectively reducing blood phenylalanine levels [5]. - The product is designed to cater to a broad range of PKU patients, including those with severe disease subtypes [2][5]. Regulatory Developments - The European Commission is expected to ratify the marketing authorization for Sephience in approximately two months, which will apply to all 27 EU member states, as well as Iceland, Norway, and Liechtenstein [3]. - The New Drug Application (NDA) for sepiapterin is currently under review by the U.S. FDA, with a target action date of July 29, 2025 [4]. Market Launch Plans - PTC is preparing for the European launch of Sephience, with initial focus on Germany and other key markets where named patient access will be available immediately following the positive opinion [2][8]. Disease Context - Phenylketonuria (PKU) is a rare inherited metabolic disorder affecting approximately 58,000 people globally, characterized by the inability to break down phenylalanine, leading to severe neurological damage if untreated [6].

Core Viewpoint - PTC Therapeutics has received a positive opinion from the CHMP of the EMA for the marketing authorization of Sephience™ (sepiapterin) to treat phenylketonuria (PKU), addressing a significant unmet medical need in Europe [1][2]. Company Overview - PTC Therapeutics is a global biopharmaceutical company focused on discovering, developing, and commercializing differentiated medicines for rare disorders [7]. Product Information - Sephience is an oral formulation of synthetic sepiapterin that acts through a dual mechanism to enhance the activity of the phenylalanine hydroxylase (PAH) enzyme, effectively reducing blood phenylalanine levels [5]. - The product is designed to treat a broad range of PKU patients, including those with severe disease subtypes [5]. Regulatory Developments - The European Commission is expected to ratify the marketing authorization for Sephience in approximately two months, which will apply to all 27 EU member states, as well as Iceland, Norway, and Liechtenstein [3]. - The New Drug Application (NDA) for sepiapterin is currently under review by the U.S. FDA, with a target action date of July 29, 2025 [4]. Market Potential - There are an estimated 58,000 people living with PKU globally, indicating a significant market opportunity for Sephience [6]. - Launch preparations for Sephience are underway, with a focus on Germany and other key European markets [2].